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Finding the Fourth Proportional to 27,820.56, 41,675.24 and 16,721.24

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Solution

The fourth proportional to 27,820.56, 41,675.24 and 16,721.24 is: 25,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.56 : 41,675.24 = 16,721.24 : x
  2. Step 2: Convert to fraction form
    27,820.56/41,675.24 = 16,721.24/x
  3. Step 3: Cross multiply
    27,820.56x = 41,675.24 × 16,721.24
  4. Step 4: Simplify right side
    27,820.56x = 696,861,690.10
  5. Step 5: Solve for x
    x = 696,861,690.10/27,820.56
  6. Step 6: Final answer
    x = 25,048.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.